Perpendicular Offset Rectangles
Function F3D_10(a, b1, b2,c) returns the view factor from area 1 to area 2 of two finite rectangles that are oriented perpendicular to each other as shown .
Inputs:
a, b1 , b2 and c are the lengths shown in the figure [m or ft]
Note: The input values must all be greater than 0!
Example:
$UnitSystem SI K Pa J deg
a=0.5 [m]
b1=0.2 [m]
b2=0.3 [m]
c=0.5 [m]
F=F3D_10(a, b1, b2, c)
{Solution: F=0.07235}
Reference: Chapman A.J., Fundamentals of Heat Transfer, Macmillan Publishing Co., 1987, p. 734